Q: My car shakes when I decelerate on the highway.

asked by on

I had to have my differential repaired around a year ago and since then when I start decelerating on the highway approx 45 to 55 mph it's shake violently. Is this a issue with the differential or something else.

My car has 157000 miles.

Hey there.

Thanks for writing in today in regards to your 2004 Jeep Grand Cherokee. I think the issue you’re describing is not related to the differential. Most of the time, a vehicle shakes because of three specific items; problems with the tires or wheels, loose or broken suspension components, wheel bearings that are worn out. With a four wheel drive Jeep Grand Cherokee, the first thing I’d dive into would be CV joints being extremely worn out, or the tie rod end joints.

When you decelerate, weight is transferred to the front end of your Jeep quickly; even without pressing the brakes. That causes more load to those suspension components and can cause the shaking you’re describing at the speeds you’re indicating. The best bet here is to contact a local ASE certified mechanic, such as one from YourMechanic, and allow them to road test your Jeep Grand Cherokee. The road test is often the best starting point to accurately diagnose the shaking you’re experiencing.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car shakes when I decelerate on the highway.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Check Engine light won't go off

Hi there. The vapor purge solenoid releases the fumes in the gas tank. If the solenoid is stuck closed, the gasses can't escape and try to come out the fill tube. The nozzles at the gas pump are designed to...

Q: Hesitation when I push the accelerator.

Hi there, The problem you are having is most likely due to the fuel pressure not holding it's static pressure to the injectors. The fuel system needs to hold fuel pressure to the injectors in order for the injector to...

Q: Q: the motor is shaking!

It sounds like your vehicle may have a broken vacuum line to the intake manifold. Check the Positive Crankcase Ventilation (PCV) vacuum system and vacuum lines for leaks by listening for the vacuum leak. This is why the engine runs...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...